Spindle actuated tube locking adapter



`lune 4, 1946. G. B. MARKLE, JR 2,401,309

SPINDLE ACTUATED TUBE LOCKING ADAPTER Filed Apri; 28. 194s v Afw/95,12.

mi n' Patented June 4, 1946 SPINDLE ACTUATED TUBE LOCKING ADAPTER George B. Markle, Jr., Hazleton,

Freeland Spool and Bobbin Corp.,

Pa., assignor to Hazleton,

Pa., a corporation of Pennsylvania Application April 28, 1943, Serial No. 484,857

7 Claims. l

This invention relates to certain new and use ful improvements in a spindle actuated tube locking adapter, the object being to provide an adapter for holding a tube or the like having means so disposed that a tube or the like Awill be locked upon the adapter by said means when said adapter is placed on a spindle, the means being released when the adapter is removed from the spindle.

A further object of the invention is to provide an adapter with resilient means for locking the tube or the like thereon, said means being so constructed that it can readily be placed in position within the adapter when the same is being constructed, and held in such a position that inclined faces will be presented to the spindle as the adapter is placed thereon so that the resilient means will be forced outwardly into engagement with the tube or the like.

In the drawing:

Fig. 1 is a side elevation partly in section through my improved construction of adapter.

Fig. 2 is a transverse section through the adapter.

Fig. 3 is a side elevation partly in section of a modified form of adapter.

Fig. 4 is a transverse section of Fig, 3.

In the above illustrations of my invention as shown in Figs. 1 and 2, the adapter is composed of a sectional tubular body cylindrical or conical in shape comprising an inner section I and an outer section 2, one section tele'scoping within the other section as clearly shown. The inner section I is provided lwith a reduced portion 3 at one end having longitudinally disposed slots 4 registering with transverse disposed openings 5 formed in the outer section 2 which section embraces the inner section as clearly shown, and is securely fastened thereto by any suitable means.

Recesses 6 are formed in the outer section registering with the slots 4 of the inner` section as clearly shown in Fig. 1. The recesses are provided with longitudinally disposed bores 'I to receive one leg of substantially U-shaped resilient members 8 the other leg of which works in the' slots 4 and has its ends bent' outwardly and working in the transversely disposed openings 5 so that they can be forced outwardly into engagement with the inner wall of a tube or the like carried thereby when the adapter is placed on a spindle. The ends of the resilient members are preferably sharp as shown, to engage the tube so that it will rotate with the adapter. It will be seen that the resilient members are held 2 in position when the two sections of the adapter are secured together.

In the embodiment of my invention as shown in Figs. 3 and 4 the adapter is composed of two sections 9 and I0 the outer section 9 being provided with slots I'I registering with slots I 2 formed in the reduced neck portion I3 of the inner section I0 which extends into the section 9, as clearly shown, and is adapted to be 'secured therein by any suitable means. The outer section is provided with longitudinally disposed bores I5 in which the leg I6 of a retaining member is seated, the retaining member being pro vided with a loop member I 'l having a pointed end I8 which is adapted to engage the inner wall of the tubular body or the like when placed in position on the adapter. The bore I5 is in com munication with an annular groove 20 in which is seated a split ring 2| for fastening the resilient retaining member in position within the adapter. In this construction the section III has a bore of a less diameter than the section 9 so as to accommodate spindles of a different diameter.

While in both embodiments of my invention l I have shown resilient gripping members arranged at one end of the adapter I wish it to be clearly understood that they can be placed in other positions without departing from the spirit of my invention.

I also wish it to be clearly understood that a split ring fastening member can be used for locking the resilient member in position in the construction illustrated in Figs. 1 and 2, or the split ring locking member can be dispensed Iwith in the construction shown in Figs. 3 and 4 and the resilient member be held within the adapter by the two sections of the adapter when they are placed in position in respect to one another. In other words, when the split ring is used in connection with the construction shown in Figs. 1 and 2 it forms auxiliary means as it is not essential when the two sections are telescoped together the resilient means are locked in position.

From the foregoing description it will be seen that in both embodiments of my invention I have provided an adapter formed of two sections one telescoping within the other and provided with resilient gripping means so disposed within the adapter that inclined faces are presented to the spindle when the adapter is placed in position thereon so that the resilient gripping members are forced outwardly into engagement with the inner wall or the like so aso to lock it on the adapter whereby it will rotate therewith, By forming the gripping members of resilient material they normally assume the position with the biting points out of contact with the tube so that when the adapter is removed from the spindle the tube is free to be removed from the adapter.

I claim:

1. An adapter comprising a sectional tubular body having one section provided'with a reduced slotted portion adapted to be embraced by another section, resilient substantially U-shaped gripping members working in the slots of one section having angled ends disposed in openings in the other section and adapted to be forced outwardly by a spindle when placed vin position thereon. A

2. An adapter comprising a tubular body formed of sections telescoping within one another, one section being provided with longitudinally disposed slots and the other section with transverse openings registering with the slots of the first mentioned section, resilient members carried by the second mentioned section working in the slots of the rst mentioned section having end portions extending into said openings of the second mentioned section and adapted to be forced into engagement with a tube on the adapter when said adapter is placed in position on a spindle.

3. An adapter comprising a tubular body composedof a pair of sections one telescoped within the other, one section being provided with slots and the other with transverse openings, and resilient gripping members mounted in said slots and said openings adapted to be forced outwardly by a spindle into engagement wtih a, tube carried by the adapter.

4. A spindle actuated tube adapter comprising a body formed of two sections one telescoping Within the other, one section carrying resilient members having pointed ends adapted to be forced outwardly by a spindle into engagement with a tube when disposed on the adapter and a split ring embracing one of the sections adapted to engage said resilient members for locking the same therein.

5. A spindle actuated tube locking adapter comprising a tubular body composed of a pair of sections one telescoping within the other, one section being provided .wtih slots and the other with bores 'and resilient members seated Within the bores and working within the slots for locking a tube in position on the adapter when said adapter is placed in position on a spindle.

6. An adapter comprising a tubular body formed of two sections telescoping within one another, one section being provided with transverse openings at one end, the other section being provided with a reduced slotted portion fitting Within the rst mentioned section, the slots thereof registering with the transverse openings, the first mentioned section being provided with longitudinally disposed bores intersecting an annular groove formed in the outer face thereof, resilient members having a portion thereof disposed in the bores and loops working in the slots with pointed ends extending into the transverse openings and a split ring seated in the groove engaging said resilient members for holding said members in position.

7. A spindle actuated tube locking adapter comprising a sectional tubular body one section having a reduced end provided with longitudinally disposed slots, the other section embracing said reduced end and provided with transversely disposed openings, spring members carred by one section of said body working in said slots and provided with pointed ends normally held Within said body by the resiliency of said spring members and adapted to be forced outwardly through said transverse openings into engagement with a tube on the body when said adapter is placed upon the spindle by the direct Contact of said spind1e with said spring members.

GEORGE B. MARKLE, JR. 

